Microscopic Anatomy of Compact Bone: Perforating (Volkmann's) Canal

What is the function of Perforating (Volkmann's) Canal in compact bone?

a. To store bone marrow
b. To transport blood vessels and nerves to the periosteum and endosteum
c. To regulate hormone levels
d. To assist in muscle movement

Answer:

b. To transport blood vessels and nerves to the periosteum and endosteum

The Perforating (Volkmann's) Canal in compact bone is a channel that branches off from the central canal and carries vessels and nerves to the periosteum and endosteum. It's essential for the nourishment and health of the bones.

The function of Volkmann's canal is essentially to help ensure the bone receives appropriate nourishment and can therefore maintain its health and structure. It allows blood vessels, nutrients, and nerves to be transported from the bone's exterior to its more internal structures, thus playing a major role in the viability and resilience of the bone tissue.

Compact bone consists of units called osteons that are aligned parallel to the long axis of the bone. Within the osteon, surrounded by rings of lamellae, you find the Haversian canal. Branching off from these central canals are the Perforating (Volkmann's) Canals.